/* ========================================
   DESIGN TOKENS - Bluedobie Developing
   Single source of truth for all design values
   ======================================== */

/* ========================================
   COLOR PALETTE
   ======================================== */
:root {
  /* Primary Colors */
  --color-navy: #042d4d;
  --color-cream: #fff6ec;
  --color-ink: #0e1726;
  --color-white: #ffffff;
  
  /* Gray Scale */
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e0e0e0;
  --color-gray-300: #ddd;
  --color-gray-400: #ccc;
  --color-gray-500: #999;
  --color-gray-600: #666;
  --color-gray-700: #555;
  --color-gray-800: #333;
  
  /* Semantic Colors */
  --color-text-primary: #0e1726;
  --color-text-secondary: #555;
  --color-text-light: #666;
  --color-text-muted: #999;
  
  --color-background-primary: #ffffff;
  --color-background-secondary: #f8f9fa;
  --color-background-cream: #fff6ec;
  
  --color-border-light: #ddd;
  --color-border-medium: #ccc;
  --color-border-dark: #042d4d;
  
  /* Interactive States */
  --color-link: #042d4d;
  --color-link-hover: #06396b;
  --color-button-primary: #042d4d;
  --color-button-primary-hover: #06396b;
}

/* ========================================
   TYPOGRAPHY SCALE
   ======================================== */
:root {
  /* Font Families */
  --font-heading: 'Instrument Serif', serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Font Sizes - Fluid Typography */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);      /* 12-14px */
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);        /* 14-16px */
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);      /* 16-18px */
  --font-size-md: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);       /* 18-20px */
  --font-size-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);        /* 20-24px */
  --font-size-xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);              /* 24-32px */
  
  /* Heading Sizes - Consistent Across All Pages */
  --font-size-h1: clamp(2rem, 1.5rem + 2.5vw, 3rem);              /* 32-48px */
  --font-size-h2: clamp(1.75rem, 1.4rem + 1.75vw, 2.5rem);        /* 28-40px */
  --font-size-h3: clamp(1.5rem, 1.3rem + 1vw, 2rem);              /* 24-32px */
  --font-size-h4: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);        /* 20-24px */
  --font-size-h5: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);    /* 18-20px */
  --font-size-h6: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);        /* 16-18px */
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.4;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;
}

/* ========================================
   SPACING SYSTEM
   ======================================== */
:root {
  /* Base Spacing Unit: 8px */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 1rem;      /* 16px */
  --space-md: 1.5rem;    /* 24px */
  --space-lg: 2rem;      /* 32px */
  --space-xl: 3rem;      /* 48px */
  --space-2xl: 4rem;     /* 64px */
  --space-3xl: 5rem;     /* 80px */
  --space-4xl: 6rem;     /* 96px */
  
  /* Section Padding - Standard */
  --section-padding-sm: 3rem;     /* 48px - small sections */
  --section-padding-md: 5rem;     /* 80px - default sections */
  --section-padding-lg: 6rem;     /* 96px - hero sections */
  
  /* Container Widths */
  --container-width-sm: 640px;
  --container-width-md: 768px;
  --container-width-lg: 1024px;
  --container-width-xl: 1280px;
  
  /* Content Max Width */
  --content-max-width: 1200px;
}

/* ========================================
   BORDER & RADIUS
   ======================================== */
:root {
  /* Border Widths */
  --border-width-thin: 1px;
  --border-width-medium: 2px;
  --border-width-thick: 4px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Standard Borders */
  --border-light: 1px solid var(--color-border-light);
  --border-medium: 1px solid var(--color-border-medium);
  --border-dark: 2px solid var(--color-border-dark);
}

/* ========================================
   SHADOWS & EFFECTS
   ======================================== */
:root {
  /* Box Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Common Transition Properties */
  --transition-colors: color var(--transition-base), 
                       background-color var(--transition-base), 
                       border-color var(--transition-base);
  --transition-transform: transform var(--transition-base);
  --transition-opacity: opacity var(--transition-base);
  --transition-all: all var(--transition-base);
}

/* ========================================
   BUTTON SYSTEM
   ======================================== */
:root {
  /* Button Sizes */
  --button-padding-sm: 0.5rem 1rem;      /* Small button */
  --button-padding-md: 0.75rem 1.5rem;   /* Default button */
  --button-padding-lg: 1rem 2rem;        /* Large button */
  
  --button-font-size-sm: var(--font-size-sm);
  --button-font-size-md: var(--font-size-base);
  --button-font-size-lg: var(--font-size-md);
  
  --button-radius: var(--radius-md);
  
  /* Button Colors - Primary */
  --button-primary-bg: var(--color-navy);
  --button-primary-text: var(--color-white);
  --button-primary-bg-hover: #06396b;
  
  /* Button Colors - Secondary */
  --button-secondary-bg: var(--color-white);
  --button-secondary-text: var(--color-navy);
  --button-secondary-border: var(--color-navy);
  --button-secondary-bg-hover: var(--color-navy);
  --button-secondary-text-hover: var(--color-white);
}

/* ========================================
   Z-INDEX SCALE
   ======================================== */
:root {
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* ========================================
   BREAKPOINTS (for reference in media queries)
   ======================================== */
:root {
  /* Reference values - use in @media queries like: 
     @media (min-width: 768px) { ... } */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Typography Utilities */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }

.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Spacing Utilities */
.space-xs { margin: var(--space-xs); }
.space-sm { margin: var(--space-sm); }
.space-md { margin: var(--space-md); }
.space-lg { margin: var(--space-lg); }
.space-xl { margin: var(--space-xl); }

/* Container */
.container {
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Section */
.section {
  padding-top: var(--section-padding-md);
  padding-bottom: var(--section-padding-md);
}

.section-sm {
  padding-top: var(--section-padding-sm);
  padding-bottom: var(--section-padding-sm);
}

.section-lg {
  padding-top: var(--section-padding-lg);
  padding-bottom: var(--section-padding-lg);
}